# SDR 96ZZZX4007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Und Aerospace, repair station OG5R092N](https://openairdocs.org/faa-repair-station/OG5R092N/und-aerospace.md) (OpenAirDocs)
- Aircraft: N145ND
- Make and model: Piper PA-28-161
- Registry model: [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161) (OpenAirDocs)
- Aircraft serial: 2841226
- Engine: Lyc O320D3G
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Stud
- Part number: 75154
- Condition: Corroded
- Location: Nr 4 Bearing
- Part time: 3,197 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX4007

## Discrepancy

DURING ENGINE TEAR DOWN FOLLOWING ACCIDENT, CRANKCASE HALF NUT ON NR 4 BEARING STUDS SEIZED RESULTING IN STUD BACKING OUT OF CRANKCASE.  UPON REMOVAL, FOUND BOTH NR 4 BEARING CRANKCASE STUDS HEAVILY CORRODED/RUSTED.  ALSO, HAD GLASS BEADS IN STUD RECEPTACLES.  ENGINE WAS FACTORY OVERHAULED 11-18-94, INSTALLED 1-95.

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